Steam-boiler.



Patented Nov. 20, I900. A. MERCER.

STEAM BOILER.

(Application filed Aug. 9,1900) (No Model.) 2 Sheets-Shoat l.

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No.662,080. Patented Nov. 20, I900,

A. MERCER.

STEAM BOILER.

(Application filed Aug. 9, 1900.; (No Model.) 2 Shets-Sheet 2.

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ANDREW MERCER, or NEW YORK, N. Y-., AsS1cNoE TO THE H. B. SMITH COMPANY, or WESTFIELD, MASSACHUSETTS.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 6 625080, dated November 20, 1906.

Application filed. August 9, 1900. Serial No. 26,339. (No model.)

To ail whom, it may concern:

Be it known that I, ANDREW MERCER, a citizen of the United States, residing at the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sectional Steam Boilers or Generators, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to the sectional boiler referred to in Letters Patent of the United States No. 377,265, granted to me January 31, 1888, the structural details of the boiler shown in said patent and in the accompanying drawings being substantially the same.

As stated in the patent referred to,the boiler is adapted for carrying low pressure and moderate tire for steam or water heating purposes and for the use of wood or coal and is composed of separate cast sections forming independent water, steam, and fire spaces and sections of fines, the sections being separable for increasing or diminishing the size and capacity of the boiler and facilitating its erection and transportation.

In the accompanying drawings, Figure l is a longitudinal central section, and Fig. 2 a cross-section, of the boiler. Fig. 3 is a detached portion of the sections embracing the heating-fines and water-spaces; Fig. 4, a face view of a partition or packing interposed with each boiler-section; Fig. 5, an enlarged view of a portion of .the packing; Fig. 6, a cross section of the same on the line 6 6, Fig. 5.

A, A, and A represent the several like sections, and B O the end sections, which constitute the boiler front and back, respectively, and which include all that portion of the boiler to which the present invention is applied, and which consists in interposing an elastic and heat-resisting material between each boilersection in sheet form and covering every portion of its face or surface surrounding the I In the boiler made in accordance with the prior patent referred to it is found in practice that the joint between the sections was not rendered tight, no provision being made to sufficiently compensate for the variable expansion and contraction between the sections and maintain an air and dust tight joint. In consequence the lodgment of the dirt and dust in and around the joint, together with. the moisture that accumulates at times when the boiler is not in use, produced a composition which adhered to the metal, which is difficult to remove and which causes a corrosive action detrimental to the efficiency and durability of the boiler.

The present invention has effectually remedied this trouble, and in carrying out the same I have applied a partition, which covers the whole space surrounding the lines he;

tween the sections, made up of asbestos ma- ANDREW MERGER.

Witnesses:

CHAS. W. FORBES, HAROLD J. BASTINE. 

